The two major gatherings on the global market for products and services conforming to Islamic guidelines (known as halal) – organized under the auspices of the Turkish Presidency –kicked off on Thursday.

Some 250 exhibitors are present at the four-day expo.

The event has attracted scholars, company representatives, experts, business people and politicians from around 80 countries.

The summit has hosted several key-note speakers across the world including Yusuf Islam, also known as Cat Stevens.